| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | MODIFIED AMINE-ALDEHYDE RESINS AND USES THEREOF IN SEPARATION PROCESSES | EP07809864.7 | 2007-06-22 | EP2040847A2 | 2009-04-01 | WRIGHT, James, T.; WHITE, Carl, R.; GABRIELSON, Kurt; HINES, John, B.; ARTHUR, Lisa, M.; COUSIN, Michael, J. |
| Modified resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These modified resins are especially useful as froth flotation depressants in the beneficiation of many types of materials (e.g., mineral and metal ores), including the beneficiation of impure coal comprising clay impurities, as well as in the separation of valuable bitumen from solid contaminants such as sand. The modified resins are also useful for treating aqueous liquid suspensions to facilitate the removal of solid particulates, as well as the removal of metallic ions in the purification of water. The modified resins comprise a base resin that is modified with a coupling agent, which is highly selective for binding to solid contaminants and especially siliceous materials such as sand or clay. | ||||||
| 22 | Procédé de réduction de la teneur en tensioactifs au cours du désencrage du papier et dispositif de désencrage mettant en oeuvre ce procédé | EP07301076.1 | 2007-05-31 | EP1881105B1 | 2009-03-04 | Carre, Bruno |
| 23 | SLIME TREATMENT METHOD | EP06743437.3 | 2006-04-12 | EP1876148A1 | 2008-01-09 | SERRANO, Gil Luis, C/Arroyo Salobre, Nave 41-42; FOX, Pierre, C/Arroyo Salobre, Nave 41-42 |
Treatment procedure for sludge generated by the washing of granular materials and use of this procedure as a sludge treatment and management optimisation system. This procedure is carried out by adding a liquid flocculant to primary sludge and decanting it in a decanting tank, obtaining a secondary sludge, adding flocculating liquid to the secondary sludge, flocculating the secondary sludge, decanting and obtaining the tertiary sludge and water. |
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| 24 | PROCESS FOR SULPHIDE CONCENTRATION | EP02717837.5 | 2002-04-11 | EP1392444A1 | 2004-03-03 | SENIOR, Geoffrey, David; THOMAS, Scott; JUDD, Brian |
| The present invention relates to a gravity/flotation circuit where a mineral stream, such as a flotation rougher or cleaner concentrate, undergoes a two stage size separation wherein: i) the screen of the first stage provides a coarse stream of particles greater than 110 microns and a fines stream of particles less than 110 microns; and ii) the fines stream of less than 110 microns is subjected to the second stage separation whereupon a cyclone provides an ultrafine/slimes stream of p80 less than about 25 microns and a middlings stream of p80 greater than around 25 microns. The middlings stream is subjected to flotation to recover nickel sulphide which is sent to final concentrate, and reject or depress magnesia which undergoes gravity separation to concentrate the MgO. It has been discovered that a large proportion of the MgO minerals in the concentrate are contained in the 30 to 100 micron size fraction and that they are well liberated making physical separation possible. Furthermore, the nickel sulphide minerals and magnesia minerals have a significantly different specific gravity which can be exploited using gravity separation equipment to achieve magnesia rejection. | ||||||
| 25 | Process of treating a dust which contains zinc and lead and which is derived from an iron or steel making process | EP81200486.9 | 1981-05-07 | EP0040870A1 | 1981-12-02 | Heijwegen, Cornelis Petrus; Kat, Willem |
Zinc and lead are separated together out of dust derived from a gas-cleaning installation in iron or steel making by a flotation-separation treatment. In order economically to provide a good separation of these metals and to leave a residue which is re-usable in an orepreparation process in the iron and steel industry, the flotation-separation treatment is at a pH of 7 to 9 and is effective to achieve a separation, according to size of the dust particles, of a floated component in which the zinc and lead are concentrated and a non-floated component which is suitable for re-use. |
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| 26 | Froth flotation process for the separation of silicates and alkaline earth metal carbonates using a collector comprising at least one hydrophobically modified polyalkyleneimine | EP10157099.2 | 2010-03-19 | EP2366456B1 | 2013-10-16 | Gane, Patrick A.C.; Buri, Matthias; Rentsch, Samuel; Sötemann, Jörg |
| The invention refers to a process to separate silicates and alkaline earth metal carbonates implementing at least one hydrophobically modified polyalkyleneimine, wherein: i) the polyalkyleneimine is hydrophobically modified by replacement of all or part of the hydrogens of their primary and/or secondary amino groups by functional group R, where R comprises a linear or branched or cyclic alkyl and/or aryl group and contains 1 to 32 carbon atoms; ii) prior to modification, the polyalkyleneimine has at least 3 alkyleneimine repeat units and a molecular weight of between 140 and 100 000 g/mol; iii) modification of the polyalkyleneimine results in an increase in the atomic C amount, relative to the unmodified polyalkyleneimine, of between 1 and 80 %. The invention additionally refers to a silicate-containing product and an alkaline earth metal carbonate-containing product obtained by the process of the invention, and to their uses. | ||||||
| 27 | MODIFIED AMINE-ALDEHYDE RESINS AND USES THEREOF IN SEPARATION PROCESSES | EP08770690.9 | 2008-06-11 | EP2173491A1 | 2010-04-14 | WRIGHT, James, T.; WHITE, Carl, R.; GABRIELSON, Kurt; HINES, John, B.; ARTHUR, Lisa, M.; COUSIN, Michael |
| Modified resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These modified resins are especially useful as froth flotation depressants in the beneficiation of many types of materials (e.g., mineral and metal ores), including the beneficiation of impure coal comprising clay impurities, as well as in the separation of valuable bitumen from solid contaminants such as sand. The modified resins are also useful for treating aqueous liquid suspensions to facilitate the removal of solid particulates, as well as the removal of metallic ions in the purification of water. The modified resins comprise a base resin that is modified with a coupling agent, which is highly selective for binding to solid contaminants and especially siliceous materials such as sand or clay. | ||||||
| 28 | PROCESS FOR SULPHIDE CONCENTRATION | EP02717837 | 2002-04-11 | EP1392444A4 | 2009-04-15 | SENIOR GEOFFREY DAVID; THOMAS SCOTT; JUDD BRIAN |
| The present invention relates to a gravity/flotation circuit where a mineral stream, such as a flotation rougher or cleaner concentrate, undergoes a two stage size separation wherein: i) the screen of the first stage provides a coarse stream of particles greater than 110 microns and a fines stream of particles less than 110 microns; and ii) the fines stream of less than 110 microns is subjected to the second stage separation whereupon a cyclone provides an ultrafine/slimes stream of p80 less than about 25 microns and a middlings stream of p80 greater than around 25 microns. The middlings stream is subjected to flotation to recover nickel sulphide which is sent to final concentrate, and reject or depress magnesia which undergoes gravity separation to concentrate the MgO. It has been discovered that a large proportion of the MgO minerals in the concentrate are contained in the 30 to 100 micron size fraction and that they are well liberated making physical separation possible. Furthermore, the nickel sulphide minerals and magnesia minerals have a significantly different specific gravity which can be exploited using gravity separation equipment to achieve magnesia rejection. | ||||||
| 29 | MODIFIED AMINE-ALDEHYDE RESINS AND USES THEREOF IN SEPARATION PROCESSES | EP05854996.5 | 2005-12-21 | EP1838451A2 | 2007-10-03 | WRIGHT, James; HURD, Phillip W.; BOYER, Peter; ARTHUR, Lisa M.; MILLS, Jeffrey; HART, Paul; REDIGER, Richard; KELLY, Robbie D. |
| Modified resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These modified resins are especially useful as froth flotation depressants in the beneficiation of many types of materials (e.g., mineral and metal ores), including the beneficiation of impure coal comprising clay impurities, as well as in the separation of valuable bitumen from solid contaminants such as sand. The modified resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water. The modified resins comprise a base resin that is modified with a coupling agent, which is highly selective for binding to solid contaminants and especially siliceous materials such as sand or clay. | ||||||
| 30 | Process of treating a dust which contains zinc and lead and which is derived from an iron or steel making process | EP81200486.9 | 1981-05-07 | EP0040870B1 | 1985-05-08 | Heijwegen, Cornelis Petrus; Kat, Willem |
| 31 | FROTH FLOTATION PROCESS FOR THE SEPARATION OF SILICATES AND ALKALINE EARTH METAL CARBONATES USING A COLLECTOR COMPRISING AT LEAST ONE HYDROPHOBICALLY MODIFIED POLYALKYLENEIMINE | EP11708477.2 | 2011-03-16 | EP2547453A1 | 2013-01-23 | GANE, Patrick, A., C.; BURI, Matthias; RENTSCH, Samuel; SÖTEMANN, Jörg |
| The invention refers to a process to separate silicates and alkaline earth metal carbonates implementing at least one hydrophobically modified polyalkyleneimine, wherein: i) the polyalkyleneimine is hydrophobically modified by replacement of all or part of the hydrogens of their primary and/or secondary amino groups by functional group R, where R comprises a linear or branched or cyclic alkyl and/or aryl group and contains 1 to 32 carbon atoms; ii) prior to modification, the polyalkyleneimine has at least 3 alkyleneimine repeat units and a molecular weight of between 140 and 100 000 g/mol; iii) modification of the polyalkyleneimine results in an increase in the atomic C amount, relative to the unmodified polyalkyleneimine, of between 1 and 80 %. The invention additionally refers to a silicate-containing product and an alkaline earth metal carbonate-containing product obtained by the process of the invention, and to their uses. | ||||||
| 32 | Froth flotation process for the separation of silicates and alkaline earth metal carbonates using a collector comprising at least one hydrophobically modified polyalkyleneimine | EP10157099.2 | 2010-03-19 | EP2366456A1 | 2011-09-21 | Gane, Patrick A.C.; Buri, Matthias; Rentsch, Samuel; Sötemann, Jörg |
The invention refers to a process to separate silicates and alkaline earth metal carbonates implementing at least one hydrophobically modified polyalkyleneimine, wherein: The invention additionally refers to a silicate-containing product and an alkaline earth metal carbonate-containing product obtained by the process of the invention, and to their uses. |
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| 33 | PROCESSING ASPHALTENE-CONTAINING TAILINGS | EP06737434.8 | 2006-03-07 | EP2040848A1 | 2009-04-01 | DUYVESTEYN, Willem, P., C.; KIFT, Julian; MORLEY, Raymond. L. |
| Embodiments of a method and a system for recovering energy, materials or both from asphaltene-containing tailings are disclosed. The asphaltene-containing tailings can be generated, for example, from a process for recovering hydrocarbons from oil sand. Embodiments of the method can include a flotation separation and a hydrophobic agglomeration separation. Flotation can be used to separate the asphaltene-containing tailings into an asphaltene-rich froth and an asphaltene-depleted aqueous phase. The asphaltene-rich froth, or an asphaltene-rich slurry formed from the asphaltene-rich froth, then can be separated into a heavy mineral concentrate and a light tailings. Hydrophobic agglomeration can be used to recover an asphaltene concentrate from the light tailings. Another flotation separation can be included to remove sulfur-containing minerals from the heavy mineral concentrate. Oxygen-containing minerals also can be recovered from the heavy mineral concentrate. Water removed by the various separation steps can be recycled and its heat energy recovered. | ||||||
| 34 | Procédé de réduction de la teneur en tensioactifs au cours du désencrage du papier et dispositif de désencrage mettant en oeuvre ce procédé | EP07301076.1 | 2007-05-31 | EP1881105A3 | 2008-02-13 | Carre, Bruno |
L'invention concerne un procédé de désencrage comprenant au moins une étape de séparation des substances tensioactives par flottation par air dispersé, ainsi que le dispositif de désencrage adapté à la mise en oeuvre d'un tel procédé.
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| 35 | Procédé de réduction de la teneur en tensioactifs au cours du désencrage du papier et dispositif de désencrage mettant en oeuvre ce procédé | EP07301076.1 | 2007-05-31 | EP1881105A2 | 2008-01-23 | Carre, Bruno |
L'invention concerne un procédé de désencrage comprenant au moins une étape de séparation des substances tensioactives par flottation par air dispersé, ainsi que le dispositif de désencrage adapté à la mise en oeuvre d'un tel procédé.
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| 36 | Einrichtung zur Abtrennung der Luft aus Flotationstrüben | EP91103529.3 | 1991-03-08 | EP0447887B1 | 1994-12-21 | Schweiss, Peter; Dörflinger, Hans-Dieter; Nolte, Michael |
| 37 | Einrichtung zur Abtrennung der Luft aus Flotationstrüben | EP91103529.3 | 1991-03-08 | EP0447887A1 | 1991-09-25 | Schweiss, Peter; Dörflinger, Hans-Dieter; Nolte, Michael |
Die Einrichtung zur Abtrennung von Luft aus Fasersuspensionen von Flotationseinrichtungen, die stark mit Luft und Schaum versetzt sind bzw. ein Gemisch aus Flüssigkeit und Schaum darstellen, weist einen Hydrozyklon (1) auf, dessen Einlaßöffnung (4) mindestens 2,5 m unterhalb der Auslaßöffnung der Flotationseinrichtung für die mit Luft beladene Flüssigkeit bzw. das Gemisch angeordnet ist. Der Trennbereich (3) des Hydrozyklons ist ein schlanker, kegelstumpfförmiger Körper, an dessen spitzem (dünnem) Ende die entlüftete Flüssigkeit abgezogen wird. Dabei wird ein Gegendruck an dieser Auslaßöffnung aufrechterhalten, so daß die Einlaßöffnung nicht völlig von dem Wirbel der Flüssigkeit abgedeckt ist, so daß noch genügend freier Eintrittsquerschnitt für den Schaum verbleibt. Oberhalb des Eintrittsbereichs (2) des Hydrozyklons ist ein mechanischer Schaumzerstörer mit einem Rotor (10) angeordnet, der ein Laufrad aufweist, das mit einer radialen Beschaufelung versehen ist. Ein trichterförmiger Saugstutzen führt das Luft-Schaum-Gemisch dem Laufrad zu. |
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| 38 | REDUCING THE NEED FOR TAILINGS STORAGE DAMS IN MINERAL FLOTATION | US15299955 | 2016-10-21 | US20170326559A1 | 2017-11-16 | Anthony Owen FILMER; Daniel John ALEXANDER |
| THIS invention relates to a process for recovering value metals from ore (50) configured such as to substantively reduce or eliminate the need for a tailings storage facility. This object is achieved through an integrated processing system designed to enhance the ratio of sand residue from coarse flotation (62) to the amount of tailings arising from fine flotation (72), and then blending a proportion of coarse and fine flotation gangue materials into a free draining stack (82). | ||||||
| 39 | Odor control | US12935966 | 2009-04-06 | US08734757B2 | 2014-05-27 | Chris du Plessis; Geoffery David Senior |
| A process for producing a mineral concentrate product that at is at least a substantially odor-free product comprises any one or more than one of (a) organics removal by (i) treatment of a froth product slurry containing floated mineral particles to remove organic compounds from the mineral particles and/or (ii) thermal treatment, and (b) addition of chemicals to prevent residual organic compounds on mineral concentrates being converted to odorous compounds, particularly while the concentrates are being stock-piled or transported. | ||||||
| 40 | BITUMEN EXTRACTION AND ASPHALTENE REMOVAL FROM HEAVY CRUDE USING HIGH SHEAR | US12914781 | 2010-10-28 | US20110266198A1 | 2011-11-03 | Abbas Hassan; Aziz Hassan; Krishnan Viswanathan; Gregory G. Borsinger; Rayford G. Anthony |
| Herein disclosed is a method of removing at least one component from a feed by subjecting the feed to high shear in the presence of carbon dioxide to produce a high shear-treated product and separating the at least one component from the high shear-treated product to produce a component-reduced product. Also disclosed is a method of removing asphaltenes from asphaltenic oil by subjecting the asphaltenic oil to a shear rate of at least 10,000 s−1 in the presence of carbon dioxide to produce a high shear-treated product and separating asphaltenes from the high shear-treated product to produce an asphaltene-reduced product oil. Systems are also provided for carrying out the methods. | ||||||
